REV Dehydration: Commercial Drying Technology for Foods and Food Ingredients

CompanyRadiant Energy Vacuum (“REV”) Dehydration Technology

Vancouver-based industrial technology company, UBC spin-off

Proprietary method of drying food, bulk liquids, biological and pharmaceutical materials

MethodRadiant Energy Vacuum (“REV”)

Microwave energy under vacuum enables high-speed, low temperature drying above or below freezing point

Preserve nutritional value, bioactivity, flavor, color, texture better than high temperature methods such as spray or air drying

Target to replace conventional drying for sensitive materials and enable new dry products

REV TechnologyTechnology Overview

REV technology applies microwave energy under vacuum for high-speed drying at low temperatures

Key discoveries:

1. Methods of distributing a microwave field to avoid plasma discharge in vacuum.

2. Means of achieving reliable, homogeneous dehydration across a large load.

3. Continuous processing.

REV TechnologyTargeted Advantages

Faster Dry in minutes or hours versus days, for reduced capital costs

Continuous Reduces labour & energy, easily automated

Better

Most economical way to dry temperature sensitive products and retain quality, such as biological activity, nutrients, colour, solubility, etc.

Puffing

Steam & air bubbles inside material can expand & create puffed structure.

If material is dehydrated until rigid, expansion will be retained

Example: flour & water dough balls.

Cross-section of REV Dough Ball

cm

REV Technology PlatformsPositioned to Compete in Broad Market SegmentsPlatform Functionality Markets

nutraREV™ Dehydrates pieces of solid foodContinuous, tumble drying

Low-fat snacksNutraceuticals

Pet foodBaby food

Functional foodsDried fruits,

vegetables, herbsDried meats

powderREV™Below freezing

Converts bulk frozen material to dry powderRapid, continuous freeze drying

Probiotics Food cultures

ProteinsPharmaceuticals

EnzymesBulk food

quantaREV™Above freezing

Dries pastes, gels, liquids, or particulates Continuous belt drying

Fruit pomaceConcentrates

IngredientsProtein

suspensions

MIVAP™ High-speed, low temperature drying of purees in trays

Meat pureesFruit slices

PomaceEncapsulated

enzymes

www.enwave.net | TSX-V: ENW | FSE: E4U

nutraREVTM for Dehydration of berries, herbs, meats, vegetable pieces, etc.

nutraREV™ Technology1.8 kW lab-scale machine

Fresh blueberry

nutraREV dried, puffed blueberry

nutraREV™ TechnologyDried “Puffed” Blueberries

Kale Carrot

Blueberry

Cranberry

nutraREV™ TechnologyProduction of biological powders

nutraREV™ dried products show similar or better nutrition retention than freeze dried:

Product Fresh frozen

Air Dried nutraREV™

Freeze Dry

Vitamin A (μg) Carrot 1500 1150 1280 1380

Vitamin C (μg) Carrot 450 150 400 450

Anthocyanins (mg) Blueberry 5.3 2.0 5.0 5.2

Phenolics (mg) Blueberry 35.5 21.5 33.5 24.5

Antioxidants (TBARS) Blueberry 32 20 23 23

Data is per grams of solids.

* Sources: Durance et al. 2001 US Patent 6,312,745: Lin et al. 1998. Food Res. International 31:111.

nutraREV™ Technology

nutraREV™ TechnologyFour Basket 20 kW pilot-scale machine

nutraREV Dehydration for production of biological powders.

Kale Carrot

Blueberry Cranberry

www.enwave.net | TSX-V: ENW | FSE: E4U

powderREVTM for Rapid, Bulk Powder Freeze Drying

powderREV™Processing biological materials in bulk

Converts frozen liquids, purees, or solids into dried powder

Collaboration project with Danisco AS, dominant global supplier of freeze dried food cultures & probiotics

Successful prototype test completed March 2010

Delivery target for continuous pilot machine in Q2 2011

quantaREV™ Potential large-scale continuous vacuum bed-drying

quantaREV™New REV design for continuous large scale vacuum drying

Modular design and belt conveyor allows very large scale processing of liquids, pastes, or solids Proprietary microwave design minimizes costs and prevents arcingExtends REV potential into larger volume product areas:

Fruits & vegetablesProteins (soy, canola, milk, eggs, plasma)Meat pureesEnzymes (detergents, bio fuels, rubber, beer, spirits)

EnWave to establish exclusive collaborations with market leaders to broaden market acceptance of quantaREV™

MIVAP:Tray-based REV Dehydration

MIVAP for Purees180 kW MIVAP for drying chicken meat puree - installed in France

Feed pump & hopper for puree

Automatic Tray Washing and Storage

High-speed, low temperature drying of purees; dried and ground.

www.enwave.net | TSX-V: ENW | FSE: E4U

bioREVTM & freezeREVTM for Pharmaceutical Dehydration

16 REV PatentsStrong Intellectual Property

Base patents (8) issued to University of BC, EnWave has exclusive global rights to their use. Company has been filing its own patents since 2008

Includes two issued Canadian patent for REV drying of gels, pastes and foams containing bioactive ingredients, also filed in US, EU, Australia, China, HK, and India, etc.

MIVAP US Patents

nutraREV™ and powderREV™ equipment patents filed by EnWave and pending in major jurisdictions around the world

Commercial Progression

REV TechnologyPatents filed ,

issued or pending

Conceptual prototype

stage

Pilot development

stage

Commercial development

stage (1)

Multi-national collaboration

partners

nutraREV™ Nestlé & Bimbo

powderREV™ 9 to 12 months (2) Danisco

quantaREV™ 12 to 18months Grimmway

MIVAP™ N/A

(1) Commercial machine with dried capacity of up to 100 Kilo per hour sold to CAL-SAN(2) Expected time required to complete pilot machine testing, Danisco licence agreement and secure first commercial

machine order for delivery in first half of 2012(3) FDA GMP regulatory approvals required for therapeutic pharmaceutical applications

Technology Development Targets as of October 2010

Contact Details

Tim Durance

Chairman & Co-CEO

Phone: (604) 822-4425Cell: (604) 319-8404

Email: tdurance@enwave.net

John McNicol

President & Co-CEO

Phone: (604) 603-2959

Email: john.mcnicol@enwave.net

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